XtConvert(3Xt)XtConvert(3Xt)NAME
XtConvert, XtDirectConvert - invoke resource converters
SYNOPSIS
void XtConvert(w, from_type, from, to_type, to_return)
Widget w;
String from_type;
XrmValuePtr from;
String to_type;
XrmValuePtr to_return;
void XtDirectConvert(converter, args, num_args, from, to_return)
XtConverter converter;
XrmValuePtr args;
Cardinal num_args;
XrmValuePtr from;
XrmValuePtr to_return;
ARGUMENTS
Specifies the argument list that contains the additional arguments
needed to perform the conversion (often NULL). Specifies the conver‐
sion procedure that is to be called. Specifies the value to be con‐
verted. Specifies the source type. Specifies the number of additional
arguments (often zero). Specifies the destination type. Returns the
converted value. Specifies the widget to use for additional arguments
(if any are needed).
DESCRIPTION
The XtConvert function looks up the type converter registered to con‐
vert from_type to to_type, computes any additional arguments needed,
and then calls XtDirectConvert. XtConvert has been replaced by XtCon‐
vertAndStore.
The XtDirectConvert function looks in the converter cache to see if
this conversion procedure has been called with the specified arguments.
If so, it returns a descriptor for information stored in the cache;
otherwise, it calls the converter and enters the result in the cache.
Before calling the specified converter, XtDirectConvert sets the return
value size to zero and the return value address to NULL. To determine
if the conversion was successful, the client should check
to_return.address for non-NULL. XtDirectConvert has been replaced by
XtCallConverter.
SEE ALSOXtAppAddConverter(3Xt), XtStringConversionWarning(3Xt), XtConvertAnd‐
Store(3Xt), XtCallConverter(3Xt)
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface
XtConvert(3Xt)
